LiDAR (light detection and ranging) has documented 26 settlement sites, including two remarkably large, of the Casarabe culture in the Llanos de Mojos, Bolivia. The discovery challenges the view of Amazonia as a historically pristine landscape, but was instead home to an early urbanism created and managed by indigenous populations for thousands of years. The site of Cotoca in the Llanos de Mojos region, Bolivia. Image credit: Heiko Prümers / DAI. During...